Saw filing and setting device



Jan. 17, 1967 w. H. KELLOGG 3,298,253

SAW FILING ANDVSETTING DEVICE Filed May 22, 1964 3 Sheets-Sheet 1 FIG.1.

INVENTOR W4EN KELLOGG,

Jan. 17, 1967 w. H. KELLOGG 3,293,253

I SAW FILING AND SETTING DEVICE .Filed May 22, 1964 3 Sheets-Sheet 2INVENTOR. ,fl/aeef/v KEALOGG,

Jali- 1967 w. -1. KELLOGG 3,298,253

I SAW FILING AND SETTING DEVICE Filed May. 22, 1964 s Sheets-Sheet 3FIG- 5.

, INVENTOR. Wqeesxv 1v. KELL OGG,

m,,,6mm EMMA,-

United States Patent Office 3,298,253 SAW FILING AND SETTING DEVICEWarren H. Kellogg, 109 /2 W. Filbert St., East Rochester, N.Y. 14445Filed May 22, 1964, Ser. No. 369,364, 12 Claims. (Cl. 76-63) Thisinvention relates to a novel filing and setting device for saws,especially but not exclusively, band saws.

The primary object of the invention is the provision of a moreefficient, more easily used, and more compact device of the kindindicated, which is especially desirable for the filing and setting ofband saws, without removal of the band saw blades from their mountings,by simply clamping the device on the tables of the band saws.

Another object of the invention is the provision of a simple, relativelyinexpensive, and mechanically superior device of the character indicatedabove, which comprises a base assembly carrying a saw-advancingmechanism, and separate filing and setting assemblies which areinterchangeably mountable on the base assembly.

Other important objects and advantageous features of the invention willbe apparent from the following description and the accompanyingdrawings, wherein, for purposes of illustration only, a specific form ofthe invention is set forth in detail.

In the drawings:

FIGURE 1 is a top plan view of a device of the present invention,showing the saw filing assembly in place on the base assembly;

FIGURE 2 is a side elevation of FIGURE 1, showing the filing assembly indepressed inoperative position, in full lines, and in elevated operativeposition, in phantom lines;

FIGURE 3 is a vertical longitudinal section taken on the line 33 ofFIGURE 1, showing the saw advancing mechanism in depressed position, infull 'lines, and in elevated saw-advancing position, in phantom lines;

FIGURE 4 is a vertical longitudinal section taken on the line 44 ofFIGURE 1;

FIGURE 5 is a top plan view of the device, showing the saw settingassembly in place on the base assembly;

FIGURE 6 is a side elevation of FIGURE 5, partly broken and in section,showing the saw setting assembly in depressed inoperative position, infull lines, and in elevated operative position, in phantom lines;

FIGURE 7 is an enlarged fragmentary perspective schematic view, showingthe saw tooth setting pin or die in relation to teeth of a saw;

FIGURE 8 is a fragmentary section, like FIGURE 6, showing another formof tooth setting pin or die, on a reduced scale;

FIGURE 9 is a top plan view of FIGURE 8; and

FIGURE 10 is an enlarged section taken on the line 10-10 of FIGURE 8.

Referring in detail to the drawings, and first to FIG- URES 1 to 4thereof, the illustrated device has a base assembly 10, which comprisesa base composed of a pair of parallel spaced longitudinally elongatedflat plates 12, which are fixed, at one end, to the undersides of thelegs 14 of a reclining U-shaped block 16, having a cross member 18preferably flush with the adjacent ends of the plates 12.

The legs 14 of the block 16 are formed, near their inner ends 20, withaligned transverse bores 22. An inwardly extending arcuate arm 24 isfixed to and rises from the cross member 18 of the block 16, andterminates, at its inward end, in an upstanding saw blade holder 26.

The blade holer 26 is preferably of rectangular cross section, havingouter and inner sides 28 and 3t), respectively, the upper part of theinner side 30 being outwardly 8,298,253 Patented Jan. 17, 1967 offsetfrom the lower part thereof, as indicated at 32. A centered vertical sawblade receiving slot 34 opens to the inner side of the holder 26, and toits upper and lower ends.- A pair of vertically spaced saw bladeclamping screws 36 are threaded through a side of the holder 26 foradjustably clamping a saw blade 38 in the slot 34. A depth gauge thumbscrew 40 is threaded through the outer side 28 of the holder 26 toengage the untoothed edge 42 of the blade 38, so that teeth 44 of theblade are held projecting beyond the inner side 30 of the holder, to thedesired degree.

A saw advancing mechanism 46 comprises an elongated lever 48 which ispivoted intermediate its ends, as indicated at 50, on the working sideof the arm 24, at a point spaced above the block 16. A handle,preferably in the form of a spherical knob 52, is provided on the outerend of the lever 48, and a short laterally inwardly extending arm 54 isprovided on the inner end of the lever, and is spaced longitudinallyinwardly from the block 16. The terminal end 56 of the arm 54 issubstantially aligned with the saw holder slot 34.

A fiat pawl 58 has a circular inner portion 60 which is centrallypivoted, as indicated at 62, on the terminal end 56 of the arm 54, andan outwardly tapering portion 64, which terminates in a point 66. Theportion 64 is tangential to the portion 61), at the side of the portion60 adjacent to the saw blade 38. A coil spring 68 is connected, asindicated at 70, at its lower end, to the inner edge of one of theplates 12 of the base assembly 10, and is eccentrically connected, asindicated at 72, at its upper end, to the lower part of the portion 60of the pawl 58, under tension, whereby the pawl 58, is normallyyieldably held in a vertical position, angling toward the teeth 44 ofthe saw blade 38, as shown in FIGURES 3 and 4. As is also indicated inthese figures, the handle knob 52 serves to counterweight the lever 48downwardly, against the resistance of the spring 68, only to the extentthat thereby the pawl 58 is maintained in contact with the saw teeth.

At opposite sides of the pivot 50 of the lever 48, the lever istraversed by vertical inner and outer stop screws 74 and 76,respectively, which are arranged to have stop engagements, at differenttimes, with the upper surf-ace of the adjacent block leg 14.

The inner stop screw 74 is adjustable for limiting the downward reach ofthe pawl 58, andv the outer stop screw 76 is adjustable to limit theupward reach of the pawl 58, so that advance upwardly of the saw blade38 can be limited to one tooth .at a time, or two teeth, at a time. Thestop screws 74 and 76 are also adjustable to accommodate the advancingmechanism 46 to saw teeth of different dimensions.

The illustrated filing assembly 78 comprises a reclining transverselyelongated U-shaped carriage 80, composed of a cross member 82, andparallel arms 84, which are substantially longer than the width of thebase assembly 10. Clamp blocks 86 are removably secured, as indicated at88, upon the cross member 82, at its ends, and extend inwardlytherefrom. The blocks 86 have V- shaped notches 98, in their undersides,which are adapted to receive a filing edge 92 of a triangular file 94,-a side 96 of which bears upon the upper surfaces of the carriage arms84.

The carriage arms 84 are formed, at their free ends with laterallyinwardly extending bearings 98, formed with aligned bores 100, whichreceive a shaft 102, which is longer than the carriage 80. The shaft 102is removable fromthe bores and is adapted to be engaged endwise throughthe bores 22 of the block legs 14, and then through the bores 100,whereby the carriage is pivotally and slidably mounted on the baseassembly 10,

' 3 with the carriage positioned at the inward side of the block 16, asshown in FIGURES 1 to 4.

The carriage 80 is adapted to be manually moved upwardly from areclining inoperative position, as in FIG- URE 3, to an elevatedoperative position, shown in FIGURE 4, wherein the cutting edge 92 andadjacent sides of the file 94, are engaged in the notch between twoadjacent teeth 44 of the blade 38. The elevating of the carriage 80 ispreferably done by means of the handle 104 of the file, and the fileworked back and forth, in the notch, by means of the handle 104.

Upon completion of such a filing operation, the carriage 80 isretracted, and the lever 48 of the advancing mechanism 46 is depressed,against the resistance of the spring 68, so as to cause the pawl 58 toadvance the saw blade upwardly, preparatory to another filing operation.

For a saw tooth setting operation, wherein two adjacent oppositelyangled teeth 44 are set, in one operation, the stop screws 74 and 76 areadjusted so that depression of the lever 48 advances the blade 38upwardly, two notches at a time.

For a setting operation, the carriage 80 is removed from the baseassembly 10, and is replaced by a setting assembly 106, shown in FIGURES5 to 7.

The setting assembly 106 comprises a U-shaped yoke or carriage 108having a cross member 110, which is set at an upward and inward anglerelative to parallel spaced legs 112. The legs 112 are formed, on theirlaterally inward sides, at the free ends thereof, with bearings 114which are formed with aligned bores 116. A shaft 118 is slidably andremovably engaged through the bores 116, and is adapted to be engagedthrough the bores 22 of the block legs 14, with the yoke 108 positionedat the inward side of the block 16, as shown in FIG- URES 5 .and 6. Ahandle rod 120 is fixed centrally to and extends inwardly from the crossmember 110 of the yoke 108 and has a handle knob 122, on its free end,which is adapted to be used to elevate the yoke 108 to the operativeposition, shown in phantom lines in FIGURE 6, wherein .a setting die 124is applied to adjacent saw blade teeth 44.

The setting die 124, comprises, as shown in FIGURE 7, a preferablycylindrical block 126 which is suitably fixed to the canted uppersurface 128 of the yoke cross member 110. The upper part of the dieblock 126 is formed with a pair of oppositely angled setting surfaces130, which are severally related to adjacent, oppositely angled sawblade teeth 44, as indicated in FIGURE 7. When contacts of the settingsurfaces 130 are made with the teeth, further forcible upward pressureexerted manually, by means of the handle knob 122 completes the settingof the teeth. Following tooth setting operations are done in the sameway, with advancements of the saw blade two teeth, at a time, betweenoperations.

The device is adapted to be used, in connection with a band saw, byclamping the base assembly 10, in any suitable manner upon the table ofthe band saw, with the band saw blade extending upwardly between thebase plates 12, whereby removal of the blades from its mountings on theband saw is obviated, with accompanying savings in labor and timeconsumed otherwise in removing and replacing the blades.

It will also be understood that other types of saw blades can be filedand set by means of the device hereinabove described.

FIGURES 8 to 10 show another form of tooth setting pin or die 124a,which is devised to set only one tooth, at a time, and is reversible.This form is provided to be substituted for the die 124, of FIGURES 1 to7, to enable the user of the device to become accustomed to the use andoperation of the device.

The die or pin 124a comprises a mutilated cylindrical block 126a, whichis set removably but non-rotatably in arecess 127a, in the cross member110. The part 123a of the die 124a which extends above the cross memberis of mutilated pyramidical shape, and has only one active saw toothengaging surface 129a, which, as shown in FIGURE 10, is set in from theadjacent side of the block 126a, and is disposed at a sharper angle, tothe perpendicular, than the opposite surface 131a of the part 1231:.

Although there have been shown and described preferred forms of theinvention, it is to be understood that the invention is not necessarilyconfined thereto,

and that any change or changes in the structure of and in the relativearrangements of components thereof are contemplated as being within thescope of the invention as defined by the claims appended hereto.

What is claimed is:

1. A device of the character described, comprising a horizontal baseassembly comprising parallel spaced plates, a reclining U-shaped blockhaving a cross member bridging the plates and legs extending above andfixed to said plates, an arm fixed to and rising from said cross memberand having a horizontal portion spaced upwardly from said block, avertical saw blade holder on and rising from said horizontal portion,said holder having a side remote from said block, said holder beingformed with a vertical saw blade slot opening to said remote side and tothe upper and lower endsof the holder, blade clamping means on theholder, a carriage pivoted on said block and positioned at the saidremote side of the blade holder, said carriage being adapted to be movedupwardly from a retracted position toward said blade holder, and a sawtooth working member on the carriage.

2. A device according to claim 1, wherein said working member comprisesa file.

3. A device according to claim 1, wherein said working member comprisesa file, said carriage being mounted for movement crosswise of the baseassembly and the file being fixed in place on the carriage.

4. A device according to claim 1, wherein said working member is a toothsetting die.

5. A device according to claim 1, wherein said working member is a toothsetting die having a pair of opposed and oppositely angled setting facesfor separately engaging two adjacent saw teeth.

6. A device according to claim 1, wherein said working member comprisesa file, said carriage being U-shaped and having a cross member and legs,said legs and the legs of the block of the base assembly being formedwith aligned bores, a shaft removably engaged through said bores, saidcarriage legs being spaced from each other at a distance greater thanthe block, and the file being fixedly mounted on the cross mmeber of thecarriage.

7. A device according to claim 1, wherein said working member is a toothsetting die, said carriage being U- shaped and having a cross member andlegs, said legs being engaged with the outer sides of the legs of thebase assembly block, the latter legs and the legs of the carriage beingformed with aligned bores, a shaft extending through said bores, and atooth setting die fixed on the cross member. v

8. A device of the character described, comprising a horizontal baseassembly comprising parallel spaced plates, a reclining U-shaped blockhaving a cross member bridging the plates and legs extending along andfixed to said plates, an arm fixed to and rising from said cross memberand having a horizontal portion spaced'upward- 1y from said block, avertical saw blade holder on and rising from said horizontal portion,said holder having a side remote from said block, said holder beingformed with a vertical saw blade slot opening to said remote side and tothe upper and lower ends of the holder, blade clamping means on theholder, a carriage pivoted on said block and positioned at the saidremote side of the blade holder, said carriage being adapted to be movedupwardly from a retracted position toward said blade holder, and

a saw tooth working member on the carriage, and saw blade advancingmechanism comprising a lever pivoted intermediate its ends on a leg ofthe block of the base assembly, said lever having a handle on the endthereof remote from the carriage and a lateral arm located between thelegs of the carriage between the cross member of the carriage and thesaw blade holder, a saw blade engaging pawl pivoted on the lateral armand extending upwardly therefrom, and a spring stretched between one ofthe plates of the base assembly and a part of the pawl eccentric withrespect to its pivotal axis.

9. A device of the character described, comprising a horizontal baseassembly comprising parallel spaced plates, a reclining U-shaped blockhaving a cross member bridging the plates and legs extending along andfixed to said plates, an arm fixed to and rising from said cross memberand having a horizontal portion spaced upwardly from said block, avertical saw blade holder on and rising from said horizontal portion,said holder having a side remote from said block, said holder beingformed with a vertical saw blade slot opening to said remote side and tothe upper and lower ends of the holder, blade clamping means on theholder, a carriage pivoted on said block and positioned at the saidremote side of the blade holder, said carriage being adapted to be movedupwardly from a retracted position toward said blade holder, and a sawtooth working member on the carriage, and saw blade advancing mechanismcomprising a lever pivoted intermediate its ends on a leg of the blockof the base assembly, said lever having a handle on the end thereofremote from the carriage and a lateral arm located between the legs ofthe carriage between the cross member of the carriage and the bladeholder, a saw blade engaging pawl pivoted on the lateral arm andextending upwardly therefrom, and a spring stretched between one of theplates of the base assembly and a part of the pawl eccentric withrespect to its pivotal axis, said lever carrying stop screws at oppositesides of its pivotal axis adapted to engage the top of a leg of theblock on the base assembly, at dilferent times for limiting upward anddownward travel of the pawl.

10. A device of the character described comprising a base assemblyincluding a fixed block, a vertical saw blade holder disposed above andfixedly-supported from said block, said holder being formed with meansfor receiving a saw blade in upright position, clamping means on theholder for holding in fixed position a saw blade when received inupright position in said holder, a carriage longitudinally-spaced fromand facing toward said 6 holder and pivotally-connected to said blockfor pivotal movement between a retracted position away and spaced fromsaid blade holder and an operative position toward and continguous tosaid blade holder, and a saw tooth working member on said carriage.

11. A device of the character described comprising a base assemblyhaving a saw blade holder, saw blade advancing mechanism mounted on thebase assembly, a carriage pivoted on the base assembly and adapted to bemoved from a retracted position to an operative position adjacent to theblade holder, and a saw tooth working member on the carriage adapted toengage saw teeth in the operative position of the carriage, said membercomprising a tooth setting die, said member being provided with anirregular cross section recess, said die being removably, non-rotatablyand reversibly engaged in the recess, said die having a mutilatedpyramidical portion extending above said member, said portion having asingle saw tooth working side opposed to an unmutilated side of saidportion, said single working side being disposed at a different anglefrom said opposed side.

12. A device of the character described comprising a base assemblyhaving a saw blade holder, saw blade advancing mechanism mounted on thebase assembly, a carriage pivoted on the base assembly and adapted to bemoved from a retracted position to an operative position adjacent to theblade holder, and a saw tooth working member on the carriage adapted toengage saw teeth in the operative position of the carriage, said membercomprising a tooth setting die, said member being provided with anirregular cross section recess, said die being removably, non-rotata'blyand reversibly engaged in the recess, said die having a mutilatedpyramidical portion extending above said member, said portion having asingle saw tooth working side opposed to an unmutilated side of saidportion, said single working side being disposed at a different anglefrom said opposed side, said working side being laterally inset from theside of said portion remote from said opposed side.

References Cited by the Examiner UNITED STATES PATENTS 155,875 10/1874Legget 76-72 163,834 5/1875 Wilson et al. 7631 1,486,851 3/1924 Baldwin7631 X 2,440,898 5/ 1948 Harless 76-31 3,067,634 12/1962 Holst 76-63GRANVILLE Y. CUSTER, JR., Primary Examiner.

1. A DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A HORIZONTAL BASE ASSEMBLY COMPRISING PARALLEL SPACED PLATES, A RECLINING U-SHAPED BLOCK HAVING A CROSS MEMBER BRIDGING THE PLATES AND LEGS EXTENDING ABOVE AND FIXED TO SAID PLATES, AN ARM FIXED TO AND RISING FROM SAID CROSS MEMBER AND HAVING A HORIZONTAL PORTION SPACED UPWARDLY FROM SAID BLOCK, A VERTICAL SAW BLADE HOLDER ON AND RISING FROM SAID HORIZONTAL PORTION, SAID HOLDER HAVING A SIDE REMOTE FROM SAID BLOCK, SAID HOLDER BEING FORMED WITH A VERTICAL SAW BLADE SLOT OPENING TO SAID REMOTE SIDE AND TO THE UPPER AND LOWER ENDS OF THE HOLDER, BLADE CLAMPING MEANS ON THE HOLDER, A CARRIAGE PIVOTED ON SAID BLOCK AND POSITIONED AT THE SAID REMOTE SIDE OF THE BLADE HOLDER, SAID CARRIAGE BEING ADAPTED TO BE MOVED UPWARDLY FROM A RETRACTED POSITION TOWARD SAID BLADE HOLDER, AND A SAW TOOTH WORKING MEMBER ON THE CARRIAGE. 